*{
    font-family: "Microsoft Yahei","Helvetica Neue",Helvetica,Arial,sans-serif;
}
#header{
    width: 100%;
    height: 160px;
    position: relative;
    /* background-color: blueviolet; */
    /* position: relative; */
}
#header .container{
    width: 700px;
    height: 100px;
    margin: 0 auto;
    text-align: center;
    cursor: pointer;
}
#header .container:hover .titleLarge{
    letter-spacing: 5px;
    transition: linear .2s;
    margin-right: 10px;
}
#header .container:hover .titleLittle{
    opacity: .5;
    transition: linear .2s;
}
#header .titleLarge{
    font-size: 50px;
    color: #fff;
    font-weight: 700;
    line-height: 100px;
}
#header .titleLittle{
    font-size: 25px;
    color: #fff;
    line-height: 100px;
}

#header #nav-header{
    position: relative;
    height: 60px;
    background-color: black;
    /* background-color: black; */
}
#header #nav-header #ul{
    width: 1226px;
    margin: 0 auto;
}
#header #nav-header #ul .options{
    float: left;
    height: 60px;
    line-height: 60px;
    width: 75px;
    text-align: center;
    color: white;
    padding:0 10px;
    /* border-radius: 10px; */
}
#header #nav-header #ul .options:hover{
    border: 1px solid #474747;
}
#header #nav-header #ul .options:hover a{
   font-size: 18px;
   font-weight: 700;
   background-color: black;
   
}
#header #nav-header #ul .search{
    float: right!important;
    height: 60px;
    line-height: 60px;
    width: 75px;
    text-align: center;
    color: white;
    padding:0 10px;
}
#header #nav-header #ul .options a{
    color: white;
    z-index: 999;
}
#header #nav-header #ul .options{
    background-color: black;
    z-index: 999;
}
#canvas{
    position: fixed;
    left: 0;
    height: 100%;
    z-index: -2;
    width: 100%;
    top: 0;
}

#nav-header #ul .secondMenu{
    background-color: rgba(255,255,255,0);
    width: 95px;
    
    display: none;
    z-index: 999;
}
#nav-header #ul .secondMenu .secondOptions{
    background-color: black;
    border: 1px solid #474747;
    height: 40px;
    line-height: 40px;
    margin-left: -11px;
    cursor: pointer;
}
#nav-header #ul .secondMenu .secondOptions:hover,
#header #nav-header #ul .secondMenu .secondOptions:hover a{
    background-color: #474747;
    z-index: 2;
}
#header #nav-header #ul .secondMenu .secondOptions a{
    font-weight: 400;
    z-index: 2;
}
/* 二级菜单动画 */
#nav-header #ul .menu:hover .secondOptions{
    animation: ro ease .8s forwards;
    backface-visibility: hidden;
    opacity: .8;
    transform: rotate3d(0,1,1,180deg);
}

@keyframes ro{
    
    100%{
        transform: rotate3d(0,1,10,360deg);
    }

}

